20KPA120-B Product Overview

Introduction

The 20KPA120-B is a high-performance transient voltage suppressor (TVS) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides a comprehensive overview of the 20KPA120-B, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category and Use

The 20KPA120-B belongs to the TVS diode category and is primarily used for surge protection in various electronic circuits and systems. Its main purpose is to limit transient overvoltage and divert excessive current away from sensitive components, thereby safeguarding them from damage.

Characteristics

• Package: The 20KPA120-B is typically available in a compact, surface-mount package.
• Essence: It offers robust transient voltage suppression capabilities, ensuring reliable protection for electronic devices.
• Packaging/Quantity: These diodes are commonly packaged in reels or trays, with varying quantities based on customer requirements.

Specifications

• Voltage Rating: 120V
• Peak Pulse Power Dissipation: 20,000W
• Breakdown Voltage: 133V to 147V
• Operating Temperature Range: -55°C to +175°C
• RoHS Compliance: Yes

Detailed Pin Configuration

The 20KPA120-B typically features a standard pin configuration, with clear markings for anode and cathode connections. The pinout is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Fast Response Time: The 20KPA120-B exhibits rapid response to transient voltage events, effectively clamping the voltage to safe levels.
• Low Clamping Voltage: It maintains low clamping voltages during surge events, minimizing stress on protected circuits.
• High Surge Current Capability: Capable of handling high surge currents, making it suitable for demanding applications.

Advantages and Disadvantages

Advantages

• Superior surge protection performance
• Compact form factor
• RoHS compliant
• Wide operating temperature range

Disadvantages

• Higher cost compared to standard diodes
• Requires careful consideration of mounting and layout due to high power dissipation

Working Principles

The 20KPA120-B operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown threshold. This action diverts the surge energy away from the protected circuit, preventing damage.

Detailed Application Field Plans

The 20KPA120-B finds extensive use in various applications, including: - Telecommunication equipment - Industrial control systems - Power supplies - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

For users seeking alternatives to the 20KPA120-B, several comparable TVS diodes are available, including: - 20KPA Series from different manufacturers - SMAJ Series TVS diodes - P6KE Series TVS diodes

In conclusion, the 20KPA120-B stands as a reliable and efficient TVS diode, offering robust transient voltage suppression capabilities for diverse electronic applications.

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